Summary:
This is a simple extension to gdb, which will print the LogicalOperator
tree. Auto loading of the extension is supported via .gdbinit if the gdb
is run from the root of the repository.
Explicit loading of scripts can be done inside gdb by running
`source path/to/extension.py`.
Reviewers: florijan, mislav.bradac, buda
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D428
Summary:
Experimental script to setup and run Neo4j Web Browser + Web socket proxy.
Note! This script isn't perfect. The only purpose of this script is to setup
WS proxy with Memgraph (Memgraph has to be started manually on the default Bolt
port - 7687) + Neo4j Web Browser. The plan is to hack Neo4j Browser to work with
Memgraph but that isn't easy because of CALL queries & absence of global
vertex identifiers.
Reviewers: dtomicevic, mferencevic, teon.banek
Reviewed By: teon.banek
Subscribers: pullbot, buda
Differential Revision: https://phabricator.memgraph.io/D430
Summary:
This fixes an issue when aggregations and/or group by expressions
weren't picked up from certain operators. In addition to that, we would
segfault in cases when the `has_aggregation_` is empty. For example,
function calls without arguments: `RETURN PI()`.
Test aggregations inside some operators
Reviewers: florijan, mislav.bradac, buda
Reviewed By: mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D425
Summary:
This is a simple integration of multiple plan generation and cost
estimation. Each plan produced by VariableStartPlanner is cost estimated
and the best is used for execution.
Reviewers: florijan, mislav.bradac, buda
Reviewed By: florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D424
Summary:
A new variable has been added to CMakeLists -- `PREFERRED_DEBUGGER`.
Here, you can specify which debugger you are using, so that the compiler
produces tuned debug builds for that debugger. Currently only 'gdb' and
'lldb' are supported, since we use 'gcc' and 'clang' compilers.
Unsupported combination of `PREFERRED_DEBUGGER` and used compiler is
displayed as a warning, and the build uses default debug flags.
Reviewers: florijan, mislav.bradac, dgleich, buda
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D426
Summary:
Enabling this option will treat first sentence of a documentation
comment as a 'brief' description. This removes the need for explicitly
typing `@brief` for a *single* sentence. In case of a larger brief
paragraph, `@brief` is still required.
Reviewers: florijan, mislav.bradac, buda, dgleich, mferencevic
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D418
Summary:
Permute query parts.
Permute matching only by selecting the starting node.
Flip the expansion when expanding from the other node.
Split planner into rule_based_planner and variable_start_planner
Use symbol hash when collecting expansion nodes
Multiple node atoms may point to the same symbol, and we could generate
multiple starting positions per atom which are the same. Using symbol
hash and equality prevents generating those redundant plans.
Correctly permute optional and merge matchings
Test VariableStartPlanner
Reviewers: florijan, mislav.bradac, buda, lion
Reviewed By: florijan, buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D417
Summary:
We would redundantly generate an Expansion for the first node if it was part of
an expand. For example, the pattern `(n) -[r]- (m)` would generate
`Expansion{n}` and `Expansion{n, r, m}`, when only the latter is enough. This
change corrects that behaviour by dropping the first Expansion.
Reviewers: florijan, mislav.bradac
Reviewed By: florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D412
Summary:
This change modifies the planning API to be more general, in order to support
picking different planning strategies. The current planning strategy has been
named RuleBasedPlanner.
Reviewers: florijan, mislav.bradac
Reviewed By: florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D411
Summary:
Since the vertices iterable used in ScanAllCursor may be lazily
generated, it needs to be recreated, instead of simply calling
`begin()`. In our current implementation, we use cppitertools which do
not have move assignment implemented. Because of that, a hackish
in-place destruction and construction is used to reset the iterable.
Reviewers: florijan, mislav.bradac, dgleich, buda
Reviewed By: dgleich
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D401
Summary:
Mention the non-existent function name in semantic error. Don't merge optional
matches into one Matching, because it is an error to treat multiple optional
matches as a single optional match. Document new structures and functions. Add
not so smart ScanAllByLabel generation.
Reviewers: mislav.bradac, buda, florijan, lion
Reviewed By: mislav.bradac
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D394
Summary:
The previous behavior was incorrect, since the second transaction
cannot see the record created in the first, because it commited later.
Reviewers: florijan, buda, dgleich
Reviewed By: dgleich
Subscribers: pullbot, matej.gradicek
Differential Revision: https://phabricator.memgraph.io/D390
Summary:
Replace NodeAtom with Symbol inside ScanAll. Move ScanAllCursor outside of
ScanAll class and make it generic with regards to vertices it produces.
Reviewers: mislav.bradac, florijan
Reviewed By: mislav.bradac, florijan
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D387
Summary: Memgraph seemed like it leaked memory while in fact it was just keeping it close by. By forcing release of free memory on top of heap back to the operating system we are making sure we are not using more memory than we have to in any given moment.
Reviewers: mferencevic, buda
Reviewed By: buda
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D385
Summary: Continuous integration script. First goal is to post status messages on Phabricator (status file has to be generated in order to post messages with Jenkins plugin).
Reviewers: mislav.bradac, mferencevic, teon.banek
Reviewed By: teon.banek
Subscribers: buda
Differential Revision: https://phabricator.memgraph.io/D382
